I paid ~€30k for attic insulation , external insulation a warm roof flat roof about 7 years ago. Door done at a different time were €1.2k.
So that sounds very steep.
The storage is another big difference between the cheap and expensive ones , very slow eMMC vs very fast NVMe SSD.
But if you are going with the higher budget I would look at a windows laptop.
I was able to get the figure in branch within a few minutes. The advice was to overpay a little because the final part month interest would be added. Then the remainder was sent via cheque.